Cilygroeslwyd Reserve, Ruthin 21/7/10

Sunny,warm and humid – best day of the week. In the small overgrown quarry I counted 145 specimens of the rare limestone woundwort. Plenty of butterflies in such a small area with large skipper, comma, ringlet, meadow brown and gatekeeper. While watching them a buzzing sound drew my attention to a hummingbird hawkmoth just behind me; it was particularly fond of the marjoram and common knapweed. Good close views for several minutes.